<I>Canthidium Alvarezi</I>
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University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Center for Systematic Entomology, Gainesville, Insecta Mundi Florida 2018 Canthidium alvarezi Martínez and Halffter, 1986: a remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae) Francois Genier Canadian Museum of Nature, [email protected] Mario Cupello Federal University of Parana, Brazil Follow this and additional works at: http://digitalcommons.unl.edu/insectamundi Part of the Ecology and Evolutionary Biology Commons, and the Entomology Commons Genier, Francois and Cupello, Mario, "Canthidium alvarezi Martínez and Halffter, 1986: a remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae)" (2018). Insecta Mundi. 1145. http://digitalcommons.unl.edu/insectamundi/1145 This Article is brought to you for free and open access by the Center for Systematic Entomology, Gainesville, Florida at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Insecta Mundi by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. July 27 2018 INSECTA 0646 1–4 urn:lsid:zoobank.org:pub:D02A2597-5671-4551-A5E7-ACF0C- A Journal of World Insect Systematics 3D330A4 MUNDI 0646 Canthidium alvarezi Martínez and Halffter, 1986: a remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae) François Génier Research and Collections, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario, K1P 6P4, Canada Mario Cupello Laboratory of Systematics and Bioecology of Coleoptera, Department of Zoology, Federal University of Paraná. Centro Politécnico, Jardim das Américas, 81.531-980, Curitiba, PR, Brazil Date of issue: July 27, 2018 CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FL François Génier and Mario Cupello Canthidium alvarezi Martínez and Halffter, 1986: a remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae) Insecta Mundi 0646: 1–4 ZooBank Registered: urn:lsid:zoobank.org:pub:D02A2597-5671-4551-A5E7-ACF0C3D330A4 Published in 2018 by Center for Systematic Entomology, Inc. P.O. Box 141874 Gainesville, FL 32614-1874 USA http://centerforsystematicentomology.org/ Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be published on any non-marine arthropod. Topics considered for publication include systematics, taxonomy, nomenclature, checklists, faunal works, and natural history. Insecta Mundi will not consider works in the applied sciences (i.e. medical entomology, pest control research, etc.), and no longer publishes book reviews or editorials. 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Forsyth 0646: 1–4 2018 Canthidium alvarezi Martínez and Halffter, 1986: a remarkable Ateuchus Weber, 1801 (Coleoptera: Scarabaeidae: Scarabaeinae) François Génier Research and Collections, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario, K1P 6P4, Canada [email protected] Mario Cupello Laboratory of Systematics and Bioecology of Coleoptera, Department of Zoology, Federal University of Paraná. Centro Politécnico, Jardim das Américas, 81.531-980, Curitiba, PR, Brazil Abstract. The species Canthidium alvarezi Martínez and Halffter, 1986 (Coleoptera: Scarabaeidae: Scarabaei- nae) is transferred to the genus Ateuchus Weber, 1801, becoming Ateuchus alvarezi (Martínez and Halffter), new combination. Its relationship with other species in the genus is briefly discussed. The validity and ranking of the genus Lobidion Génier, 2010, originally described from a single female, is discussed based on the discovery of male specimens, which lead us to reclassify it as a monotypic subgenus of Ateuchus, becoming Ateuchus (Lo- bidion), new rank, with the only included species becoming Ateuchus (Lobidion) punctatissimus (Génier, 2010) new combination. Key words. Taxonomy, systematics, type specimens, dung beetle, New World. Resumo. Canthidium alvarezi Martínez and Halffter, 1986 (Coleoptera: Scarabaeidae: Scarabaeinae) é trans- ferido para o gênero Ateuchus Weber, 1801, sob a nova combinação Ateuchus alvarezi (Martínez e Halffter). Seu relacionamento com outras espécies no gênero é brevemente discutido. A validade e categorização do gênero Lobidion Génier, 2010, o qual foi descrito a partir de apenas uma única fêmea, é discutida com base em machos recém-descobertos, o que nos leva a considerar o táxon como um subgênero monotípico de Ateuchus, sendo agora tratado como Ateuchus (Lobidion), novo status, com a sua única espécies conhecida se tornando, portanto, Ateu- chus (Lobidion) punctatissimus (Génier, 2010), nova combinação. Palavras-chave. Taxonomia, sistemática, espécimes-tipo, rola-bostas, Novo Mundo. Introduction The megadiverse New World genera Ateuchus Weber, 1801 and Canthidium Erichson, 1847 (Cole- optera: Scarabaeidae) are currently under investigation respectively by MC and FG. A preliminary assessment of the current species classification for these two genera has shown that several taxa were assigned to the wrong genus, and some should be transferred to different genera (MC, personal observa- tion). The following note results from these observations. Materials and Methods Specimens studied are deposited in the collection of the Canadian Museum of Nature, Ottawa (CMNC); the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina (MACN) and the Muséum national d’Histoire naturelle, Paris (MNHN). Methodological details concern- ing dissections, genitalic preparation, imaging and plate preparation follow Génier and Moretto (2017). 2 • INSECTA MUNDI 0646, July 2018 GÉNIER AND CUPELLO Discussion While organizing the insect collection of the Canadian Museum of Nature, one of us (FG) came across a series of one male and four female specimens labeled as paratypes of “Canthidium superbum Martínez, 1982”. The name is a nomen in litteris and therefore unavailable, but the label data matched the information given for the paratypes of Canthidium (C.) alvarezi Martínez and Halffter, 1986, in the original description. Given that these specimens also match perfectly the description given by Martínez and Halffter (1986) and that the greater part of the Martínez collection is currently housed at the CMNC, these are undoubtedly part of the paratypes studied by Martínez and Halffter (1986). The incongruence between the name appearing on the paratype labels and the actual species name is of little concern as Martínez used to label going-to-be type specimens well before the actual publication of the species descriptions, leading to the existence of several specimens bearing never-published nomina in litteris in the Martínez collection (e.g., “Canthidium violetae”, “Canthon laminatus subandinus” and “Canthon virens nordestinus”). Proper paratype labels, with the name Canthidium alvarezi, are now affixed to the five paratypes currently deposited in the CMNC. The holotype male and the allotype female are deposited in the collection of the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina (Cupello 2018), while two additional